Low-energy QCD: Chiral coefficients and the quark-quark interaction.
Low-energy QCD: Chiral coefficients and the quark-quark interaction.
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DOI：
10.1103/physrevc.53.2410
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发表时间：
1995-11
期刊：
影响因子：
--
通讯作者：
Frank;Meissner
中科院分区：
文献类型：
--
作者：
Frank;Meissner
A detailed investigation of the low-energy chiral expansion is presented within a model truncation of QCD. The truncation allows for a phenomenological description of the quark-quark interaction in a framework which maintains the global symmetries of QCD and permits a 1/${\mathit{N}}_{\mathit{c}}$ expansion. The model dependence of the chiral coefficients is tested for several forms of the quark-quark interaction by varying the form of the running coupling, \ensuremath{\alpha}(${\mathit{q}}^{2}$), in the infrared region. The pattern in the coefficients that arises at tree level is consistent with large ${\mathit{N}}_{\mathit{c}}$ QCD, and is related to the model truncation. \textcopyright{} 1996 The American Physical Society.
A detailed investigation of the low-energy chiral expansion is presented within a model truncation of QCD. The truncation allows for a phenomenological description of the quark-quark interaction in a framework which maintains the global symmetries of QCD and permits a 1/${\mathit{N}}_{\mathit{c}}$ expansion. The model dependence of the chiral coefficients is tested for several forms of the quark-quark interaction by varying the form of the running coupling, \ensuremath{\alpha}(${\mathit{q}}^{2}$), in the infrared region. The pattern in the coefficients that arises at tree level is consistent with large ${\mathit{N}}_{\mathit{c}}$ QCD, and is related to the model truncation. \textcopyright{} 1996 The American Physical Society.